
打开app.config文件,在“startup”节点一个“useLegacyV2RuntimeActivationPolicy="true"”属性
在Form1窗体中,从工具箱拖出一个Crystal Report Viewer控件,双击Form窗体,是双击Form窗体,不是Crystal Report Viewer,在后台的Form_Load事件中写入如下代码:
                string reportPath = System.Windows.Forms.Application.StartupPath + @"\CrystalReport1.rpt";
                ReportDocument rd = new ReportDocument();
                rd.Load(reportPath);
                rd.SetDataSource(ds.Tables[0].DefaultView);
                this.crystalReportViewer1.ReportSource = rd;
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message.ToString());
            }
            finally
            {
                conn.Close();
            }
        }
这样就OK了
